Self-adjusting files, ProTaper Next and ProTaper Universal: a comparative study of root canal cleanness and the amount of apically extruded debris during root canal preparation

doi:10.3969/j.issn.2095-4344.2015.34.007

Abstract

Abstract:

BACKGROUND: Amount of debris extruded apically is an important indicator to evaluate the effect of root canal preparation instrument. Studies have shown that debris extruded apically can cause post-treatment pain, and thus, reducing the amount of debris extruded apically can decrease the incidence of post-treatment pain.

OBJECTIVE: To compare the root canal cleanness and the amount of apically extruded debris during root canal preparation with Self-adjusting files, ProTaper Next and ProTaper Universal.

METHODS: Forty-five premolars with single canal were divided into three groups randomly, and then prepared by Self-adjusting files, ProTaper Next and ProTaper Universal, respectively. Debris extruded apically was collected, dried and weighed. Then roots were longitudinally sectioned and observed under scanning electronic microscope to evaluate the cleanness of the root canal.

RESULTS AND CONCLUSION: The amount of apically extruded debris in the ProTaper Universal group was significantly higher than that in the Self-adjusting files group and ProTaper Next group (P < 0.05), but there were no statistically significant differences between the groups of Self-adjusting files and ProTaper Next in apically extruded debris (P > 0.05). Scores on debris and smear layer were lower in the group of Self-adjusting files than the groups of ProTaper Next and ProTaper Universal (P < 0.05), but there was no difference between the latter two groups (P > 0.05). These findings indicate that the Self-adjusting files and ProTaper Next can extrude less debris beyond the apical foramen, which may decrease the incidence of post-treatment pain. Cleaning ability of Self-adjusting files is better than ProTaper Next and ProTaper Universal.

中国组织工程研究杂志出版内容重点：组织构建；骨细胞；软骨细胞；细胞培养；成纤维细胞；血管内皮细胞；骨质疏松；组织工程

Key words: Nickel, Titanium, Root Canal Preparation, Tissue Engineering

CLC Number:

R318

Wu Wan-cui, Chen Guang-sheng . Self-adjusting files, ProTaper Next and ProTaper Universal: a comparative study of root canal cleanness and the amount of apically extruded debris during root canal preparation[J]. Chinese Journal of Tissue Engineering Research, 2015, 19(34): 5443-5447.

Figures/Tables 2

References

[1] Schilder H.Cleaning and Shaping the root canal. Dent Clin North Am.1974:18(2):269-296.
[2] 林正梅,凌均棨,高燕,等.两种镍钛机动预备器械根管清理效果的电镜观察[J].中山大学学报:医学科学版,2005,26(6):707-710.
[3] American Association of Endodontists. Glossary of endodontic terms.8th ed.Chicago.IL: American Association of Endodontists,2012.
[4] Elmsallati EA,Wadachi R,Ebrahim AK,et al.Debris retention and wear in three different nickel-titanium rotary instruments. Aust Endod J.2006;32:107-111.
[5] Taylor JK,Jeansonne BG,Lemon RR.Coronal leakage: effects of smear layer,obturation technique, and sealer.J Endod.1997; 23:508-512.
[6] Adigüzel O,Yi?it-Özer S,Kaya S,et al.Effectiveness of ethylenediaminetetraacetic acid (EDTA) and MTAD on debris and smear layer removal using a self-adjusting file . Oral Surg Oral Med Oral Pathol Oral Radiol Endod.2011; 112:803-808.
[7] Siqueira JF Jr. Microbial cause of endodontic flare ups. Int Endod J.2003;36(7):453-453．
[8] Seltzer S,Naidorf IJ.Flare-ups in endodontics:1.Etiological factors.J Endod. 1985;11(11):472-478.
[9] Siqueira JF,Rocas IN,Favieria A,et al.Incidence of postoperative pain after intracanal procedures based on an antimicrobial strategy.J Endod.2004;28:457-460.
[10] Metzger Z,Zary R,Cohen R,et al.The self-adjusting file (SAF): part 1: respecting the root canal anatomy-a new concept of endodontic files and its implementation. J Endod.2010;36(4): 679-690.
[11] Metzger Z,Zary R,Cohen R,et al.The quality of root canal preparation and root canal obturation in canals treated with rotary versus self-adjusting files: a three-dimensional micro-computed tomographic study.J Endod.2010;36(9): 1569-1573.
[12] Hof R,Perevalov V,Eltanani M,et al.The self-adjusting file (SAF).Part 2: mechanical analysis.J Endod.2010;36(4): 691-696.
[13] Elnaghy AM,Elsaka SE.Evaluation of root canal transportation, centering ratio, and remaining dentin thickness associated with ProTaper Next instruments with and without glide path.J Endod.2014;40(12):2053-2056.
[14] de Melo Ribeiro MV,Silva-Sousa YT,Versiani MA,et al. Comparison of the cleaning efficacy of self-adjusting file and rotary systems in the apical third of oval-shaped canals.J Endod.2013;39(3):398-401.
[15] Zhao D,Shen Y,Peng B,et al.Root canal preparation of mandibular molars with 3 nickel-titanium rotary instruments: a micro-computed tomographic study.J Endod. 2014;40(11): 1860-1864.
[16] Schneider SW.A comparison of canal preparations in straight and curved root canals. Oral Surg Oral Med Oral PatholOral Radiol Endod.1971;32(2):271-275.
[17] Ozsu D,Karatas E,Arslan H,et al.Quantitative evaluation of apically extruded debris during root canal instrumentation with ProTaper Universal, ProTaper Next, WaveOne, and self-adjusting file systems. Eur J Dent.2014;8(4):504-508.
[18] 闫文娟,谢苗苗,吴补领.两种镍钛器械根管预备效果的评价[J].牙体牙髓牙周病学杂志,2012,22(6):330-334.
[19] Zmener O,Pameijer CH,Alvarez Serrano S,et al.Cleaning efficacy using two engine-driven systems versus manual instrumentation in curved root canals: a scanning electron microscopic study.J Endod.2011;37(9):1279-1282.
[20] Bürklein S,Schäfer E.Apically extruded debris with reciprocating single-file and full-sequence rotary instrumentation systems. J Endod.2012;38(6):850-852.
[21] De-Deus G,Reis C,Beznos D,et al.Limited ability of three commonly used thermoplasticized gutta-percha techniques in filling oval-shaped canals.J Endod 2008;34:1401-1405.
[22] Capar ID,Arslan H,Akcay M,et al. An in vitro comparison of apically extruded debris and instrumentation times with protaper universal, protaper next, twisted file adaptive and hyflex instruments.J Endod.2014;40(10):1638-1641.
[23] Kirchhoff AL,Fariniuk LF,Mello I.Apical extrusion of debris in flat-oval root canals after using different instrumentation systems.J Endod.2015;41(2):237-241.
[24] Koçak MM,Çiçek E,Koçak S,et al.Apical extrusion of debris using ProTaper Universal and ProTaper Next rotary systems. Int Endod J.2015;48(3):283-286.
[25] Li H,Zhang C,Li Q,et al.Comparison of cleaning efficiency and deformation characteristics of twisted file and ProTaper rotary instruments.Eur J Dent.2014;8:191-196.
[26] Siqueira JF Jr,Alves FR,Almeida BM,et al.Ability of chemomechanical preparation with either rotary instruments or self-adjusting file to disinfect oval-shaped root canals.J Endod.2010;36(11):1860-1865.
[27] Topcu KM,Karatas E,Ozsu D,et al.Efficiency of the Self Adjusting file, waveone, reciproc, protaper and hand files in root canal debridement.Eur J Dent. 2014;8(3):326-329.
[28] De-Deus G,Souza EM,Barino B,et al. The self-adjusting file optimizes debridement quality in oval-shaped root canals.J Endod.2011;37:701-705.
[29] Gu LS,Kim JR,Ling J,et al.Review of contemporary irrigant agitation techniques and devices.J Endod.2009;35(6): 791-804.